please use all the information above and answer the domestic water use questions. Follow all instructions. the lab should have what is below. VVVV -Data compares more than 3 fixtures/appliances.- Tabl

Introduction (Domestic Water Use)

The purpose of the Domestic Use Water Analysis is to understand the importance of water treatment for domestic use. The clear, safe, even tasteful water that flows from a water faucet has been treated by a water treatment facility. Locally, the Miami-Dade Water and Sewer Department is responsible for providing residents with water that poses no hazards to the consumer.

In South Florida, the Biscayne Aquifer is the primary source of water for domestic and industrial use. In order for domestic water to be considered safe for human use, it must meet certain standards set by local, State, and Federal governments before the water is delivered to our homes. Routine laboratory testing for heavy metals, organic pesticides, volatile organic compounds, and pathogens that can potentially penetrate groundwater systems is critical for the health and welfare of citizens. Concentrations of hardness ions, such as calcium (Ca 2+) and magnesium (Mg 2+), as well as dissolved solids, must also be significantly reduced for domestic use.

The following activity will help you assess how much water you are using (on average) as a result of your lifestyle. Note, these numbers are all estimates and are meant as discussion points to help you use personal data and apply them to concepts of domestic water use analysis and environmental science and sustainability.

Water for Domestic Use

• Water used at home (Drinking, Washing Clothes, Food Preparation, Yard, Toilet)

• Biscayne Aquifer is the main source of water for domestic use in S. FL

  • Provides water for domestic use for Dade, Broward, Monroe Counties

  • Biscayne Aquifer = Unconfined Coastal Aquifer

• Aquifer-Area where ground water exists in sufficient quantities to supply wells or springs

  • Confined Aquifer: Has impermeable materials lining its edges, often a deep depths

  • Unconfined Aquifer: Has permeable linings, often found closer to the surface

• Groundwater

  • Stored in small spaces between rocks and soil

  • Important natural resource

  • Creates drinking water for 90% of population

• Groundwater must travel through the water cycle

  • Continuous movement of water between the earth and the atmosphere

  • Water falls to earth and migrates to surface water bodies, evaporates, and is used by plants. Remaining water is absorbed by the ground can be used for domestic use.

Regulations for Water for Domestic Use

• Water is treated by Miami-Dade Water and Sewer Department

• Water for domestic use (the water that flows into your home) MUST be treated before use

• In order to qualify for domestic use water must meet certain standards set by local, state, federal governments

  • Water often goes through testing for heavy metals, pesticides, and harmful pathogens

  • Water hardness (dissolved Ca2+ and Mg2+) is reduced

• Drinking Water Standards

  • Primary: Set contamination levels for contaminants are established and must be met.

  • Ex. Xylenes, Benzene, Nitrate

• Secondary: Regulate color, taste, odor

  • Use a cycle of different processes to clean water before it is sent to community

  • Filtration, Flocculation, Sedimentation, Disinfection

Human Threats to Ground Water

• Storm water Runoff: Impervious man-made surfaces (e.g., parking lots, sidewalks, and/or roadways) may contain pollutants such as oil, gasoline, heavy metals, pesticides and fertilizers: Can be from agricultural or even home use.

• Septic Tanks: If systems are poorly maintained they can contaminate water with bacteria, nitrates, detergents, chemicals.

• Underground Storage Tanks: Substances such as oil, gasoline, or chemicals can eventually leak out into groundwater

• Hazardous Waste: Include reactive chemicals, heavy metals, solvents, oils created by industrial processes. They can also be found at home.

• Landfills: Water leeches through layers of garbage and become contaminated, finally entering groundwater reserves. Today, many landfills are constructed with clay or synthetic liners to reduce contamination.

• Surface Impoundments: Store wastewater from factories. Toxic chemicals can leech through the bottom of pools and enter the ground water system.

• Abandoned Wells: Can act as channels for contaminates

Links for more info below
; use this

https://www.youtube.com/watch?v=-1cI0WuEmFI

https://pubs.usgs.gov/ha/ha730/ch_g/G-text4.html

https://www.youtube.com/watch?v=0NGKHu6fN04